Flexible metallic tube.



NO, 780,974,. PATENTED JAN. 31, M5,

' T. J. CARROLL.

FLEXIBLE METALLIC TUBE,

APPLICATION FILED NOV. 21. 1904.

UNITED STATES Patented January 31, 1905.

PATENT OFFICE.

THOMAS J. CARROLL, OF HAMILTON, CANADA.

FLEXIBLE METALLIC TUBE- SPECIFICATION forming part 01 Letters Patent No.780,974, dated January 31, 1905.

v Application filed November 21, 1904:. SerialNo. 283,596. a

To all whom it may concern.-

Be it known that I, THoMAs J. CARROLL, a citizen of'Canada, and aresident of Hamilton, in the county of Wentworth and Province ofOntario, Canada, have invented new and useful Improvements in FlexibleMetallic Tubes, of which the following is a specification.

My invention relates to improvements in flexible metallic tubes in whicha tin tube hav- IO ing a continuous even bore is provided with aflexible metallic and spirally-jointed covering havingoutwardly-extending flanges and a secondary flexible metallic strandhaving inwardly-extending flanges and a fabric packing between saidflanges and winding spirally around the flanges and the sides of theflanges of the first cover and around a part of the body thereof.

The objects of my invention are, first, to

provide a flexible metallic tube having an even and smooth bore orinterior throughout the tube; second, to provide a tin tube having aneven bore or interior throughout and a flexible metallic covering in twoparts or 2 5 strands, one said part spirally covering the tube and theother said strand winding spirally around and partially covering thespiral cover of the tube to give flexibility to the tube; third, toprovide a tin tube having an 0 even and smooth interior adapted to bendcircularly and retain its proper circular shape, and, fourth, to providea flexible tin tube having an even interior adapted to convey beer,spirits, and other liquids without affecting 5 the taste and quality ofbeer and the like;

which- Figure 1 is an enlarged elevation of my improved flexible tube,showing the inner tin tube and the next spiral metallic coveringstrandprotruding at each end thereof. Fig.

2 is an elevation of the same, showing a part of the outer strand on theupper and the lower part thereof and broken and partially removed fromthe tube-covering, the tube-covering broken and brought downward fromoff 5 the even exterior of the tin tube, which protrudes at each end andbroken. Fig. 3 is a detail elevation of the same, the outer metallicstrand being entirely removed, a portion of the spiral cover of the tubeon the central part thereof, and both ends of the said spiral coverbroken and unwound from off the end parts of the tin tube. Fig. 4 is asectional end elevation of the tin tube, which is even throughout itsentire length. Fig. 5 is a sectional end elevation of the spiral coverof the tube, showing its outer flange. Fig. 6 is a sectional endelevation of the outer strand. showing its fabric packing and itsinwardlyextending flange. The spiral metallic cover and the outermetallic strand referred to have side flanges, as shown. The said spiraltubecover has external side flanges and the said outer metallic strandhas internal side flanges. Fig. 7 is a sectional end elevation of thecomponent parts of the flexible tube together and in order through thejoining part of the spiral cover of the tube and the outer spiralstrand.

The'tin tube referred to has a continuous even and smooth surfacethroughout the interior and exterior thereof and should be made of puretin throughout.

The spiral cover and the outer strand referred to are preferably made ofsheet-copper.

Similar letters or characters of reference refer to similar partsthroughout the several views.

In the drawings the tin tube is indicated by A, the spiral copper coverby B, and the outer spiral copper strand by 'C. The tin tube A ispreferably even and smooth throughout its interior and exteriorsurfaces. The next spiral cover B has outwardly-extending side flanges 2and spirally Winds or coils around the tin tube A, the body part B ofthe cover being next to the tube A and hugs the same very closely. Theflanges 2 when in position on the tube A adjoin each other when broughttogether by the flanges 3 of the strand C when winding said strand toposition. It is not absolutely essential that the flanges 2 should be incontact and in close proximity to each other. If slightly apart, theflexibility of the tube would be more pronounced. The outer strand C hasinwardly-extending side flanges 3 (shown veryfully in Figs. 2 and 6 ofthe drawings) and is provided with afabric packingl: between theflanges. The body part of the outer strand C, together with the fabricpacking 4, winds spirally around the outer part of the spiral flanges 2,and the internal flanges 3- of the strand C fit closely against thesides of the two joining flanges 2 of the spiral cover B, therebyrendering the tin tube A flexible, together with the tube as a whole.hen in the act of winding the cover B spirally on the tin tube A, thebody part B adheres very closely and firmly on the tube A by theinherent nature of the copper cover B. The same may be said of the outerstrand C in its inherent adherence to the spiral cover B. It will benoticed that the strand C winds spirally and apart and is provided witha fabric packing in its interior and which fits close to the inner bodypart of the strand and around the outer part of the flanges of the coverto prevent possible leakage should the tin tube become injured by kinksof any kind through improper usage.

VVhatI claim as my invention, and desire to secure by Letters Patent,is-

1. A flexible metallic tube, comprising a tin tube having a continuousand even bore, a metallic cover, spirally Winding around said tube, andflanges outwardly extending from the cover.

2. A flexible metallic tube, comprising a tin tube having a continuouseven inner surface, a metallic cover with outwardly-extending andcontinuous flanges spirally winding around the tube, a metallic strandwith inwardlyextending and continuous flanges winding around andcovering the flanges of the cover.

3. A flexible metallic tube, comprising a tin tube having a continuouseven inner surface, a metallic cover spirally winding around the tube,side flanges outwardly extending from the cover, and continuoustherewith, a metallic strand with inwardly-extemling and continuousflanges winding around and covering the flanges of the cover, andfitting on the body of the cover.

i. A flexible metallic tube comprising a tin tube with inner and outereven surfaces, a metallic cover spirally winding around the tube, sideflanges outwardly extending from the cover and continuous therewith, ametallic strand with inwardly-extending and continuous flanges windingaround and covering the flanges of the cover and a continuous fabriepacking between the flanges of the strand.

THOMAS J. CARROLL.

Vitnesses:

JOHN H. HENDRY, RIoi-IARD BUTLER.

